xref: /netbsd-src/external/gpl3/gcc/dist/libgcc/config/rs6000/sfp-machine.h (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
1 #define _FP_W_TYPE_SIZE		32
2 #define _FP_W_TYPE		unsigned long
3 #define _FP_WS_TYPE		signed long
4 #define _FP_I_TYPE		long
5 
6 /* The type of the result of a floating point comparison.  This must
7    match `__libgcc_cmp_return__' in GCC for the target.  */
8 typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
9 #define CMPtype __gcc_CMPtype
10 
11 #define _FP_MUL_MEAT_S(R,X,Y)				\
12   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
13 #define _FP_MUL_MEAT_D(R,X,Y)				\
14   _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
15 #define _FP_MUL_MEAT_Q(R,X,Y)				\
16   _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
17 
18 #define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_loop(S,R,X,Y)
19 #define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
20 #define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
21 
22 #define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
23 #define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
24 #define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
25 #define _FP_NANSIGN_S		0
26 #define _FP_NANSIGN_D		0
27 #define _FP_NANSIGN_Q		0
28 
29 #define _FP_KEEPNANFRACP 1
30 
31 /* Someone please check this.  */
32 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
33   do {								\
34     if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)		\
35 	&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))	\
36       {								\
37 	R##_s = Y##_s;						\
38 	_FP_FRAC_COPY_##wc(R,Y);				\
39       }								\
40     else							\
41       {								\
42 	R##_s = X##_s;						\
43 	_FP_FRAC_COPY_##wc(R,X);				\
44       }								\
45     R##_c = FP_CLS_NAN;						\
46   } while (0)
47 
48 #define	__LITTLE_ENDIAN	1234
49 #define	__BIG_ENDIAN	4321
50 
51 #if defined __BIG_ENDIAN__ || defined _BIG_ENDIAN
52 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
53 #  error "Both BIG_ENDIAN and LITTLE_ENDIAN defined!"
54 # endif
55 # define __BYTE_ORDER __BIG_ENDIAN
56 #else
57 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
58 #  define __BYTE_ORDER __LITTLE_ENDIAN
59 # else
60 #  error "Cannot determine current byte order"
61 # endif
62 #endif
63 
64 
65 /* Define ALIASNAME as a strong alias for NAME.  */
66 # define strong_alias(name, aliasname) _strong_alias(name, aliasname)
67 # define _strong_alias(name, aliasname) \
68   extern __typeof (name) aliasname __attribute__ ((alias (#name)));
69